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US Patent: 2,829,470
Machine for finishing holes in irregular workpieces
Patentee: Albert M. Johnson (exact or similar names) - Rockford, IL USPTO Classifications: 408/87, 451/124, 451/364 Tool Categories: Assignees: Barnes Drill Co. - Rockford, IL Manufacturer: Barnes Drill Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Jul. 22, 1955 Granted: Apr. 08, 1958 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Barnes Drill Co.

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